更新的讨论

Kenneth Davis
上次活动时间: 大约 15 小时前

PLEA: Please make MATLAB Copilot available with a home license.

PLEASE, PLEASE, PLEASE... make MATLAB Copilot available as an option with a home license.

Devin
上次活动时间: 大约 15 小时前

Top 10 Countdown: Session #8 - 4 Ways AI Is Transforming Control System Workflows

🚀 Unlock Smarter Control Design with AI

What if AI could help you design better controllers—faster and with confidence?

In this session, Naren Srivaths Raman and Arkadiy Turevskiy (MathWorks) show how control engineers are using MATLAB and Simulink to integrate AI into real-world control design and implementation.

You’ll see how AI is being applied to:

🧠 Advanced plant modeling using nonlinear system identification and reduced order modeling

📡 Virtual sensors and anomaly detection to estimate hard-to-measure signals

🎯 Datadriven control design, including nonlinear MPC with neural statespace models and reinforcement learning

⚡ Productivity gains with generative AI, powered by MATLAB Copilot

👉 Catch the Recording Here

Generative AI

Mike Croucher
上次活动时间: 大约 20 小时前

Introducing the MATLAB Agentic Toolkit

Short version: MathWorks have released the MATLAB Agentic Toolkit which will significantly improve the life of anyone who is using MATLAB and Simulink with agentic AI systems such as Claude Code or OpenAI Codex. Go and get it from here: https://github.com/matlab/matlab-agentic-toolkit

Long version: On The MATLAB Blog Introducing the MATLAB Agentic Toolkit » The MATLAB Blog - MATLAB & Simulink

Jan Christian
上次活动时间: 2026-4-23，7:16

I have been a Matlab loyalist for 25 years

I have been a loyal MATLAB user for 25 years, starting from my university days. While many of my peers migrated to Python, I stayed for the stability, compatibility, and clean environment. However, I am finding the 2025 version exceptionally laggy. Despite running it on an $10k high-end machine, simple tasks like viewing variables and plotting take up to 60 seconds - actions that were near instantaneous in the 2020 version. I want to stay continue with MATLAB, but this performance gap is a major hurdle and irritation. I hope these optimization issues can be addressed quickly.

ThingSpeak

Aditya
上次活动时间: 2026-4-23，0:11

Quectal EC200U sending dat to Thingspeak

Hi,

I am trying to use an esp32 board with quectal ec200u LTE Modem to send sensor data to thingspeak. The board can process the sensor data however I am unable to send the data to thingspeak. I have used the same process earlier too however with a different modem from Simcom.

Can someone help me with specific commands for achieving this? I can share the code which i am trying to use.

Regards

Aditya

Mike Croucher
上次活动时间: 2026-4-22，14:36

Details about the new MATLAB Release: 2026a

Hi everyone

My blog post about the latest MATLAB release was published yesterday MATLAB R2026a has been released – What’s new? » The MATLAB Blog - MATLAB & Simulink

There are a lot of new features and performance enhancements and from conversations I've had across several social media platforms., it seems that the new metafunction functionality is emerging as a user favourite. What are you most excited to see?

Cheers,

Mike

https://link.springer.com/book/10.1007/978-3-031-62784-2

Toshiaki Takeuchi
上次活动时间: 2026-4-21，16:03

R2026a prerelease is available for download for eligible users

You can find it here https://www.mathworks.com/products/new_products/release-highlights.html

Books

Dr Narayanaswamy P R Iyer
上次活动时间: 2026-4-20，23:14

Inverters and AC Drives Control, Modeling, and Simulation Using Simulink

Overview

Authors:

Narayanaswamy P.R. Iyer
Provides Simulink models for various PWM techniques used for inverters
Presents vector and direct torque control of inverter-fed AC drives and fuzzy logic control of converter-fed AC drives
Includes examples, case studies, source codes of models, and model projects from all the chapters.

About this book

Successful development of power electronic converters and converter-fed electric drives involves system modeling, analyzing the output voltage, current, electromagnetic torque, and machine speed, and making necessary design changes before hardware implementation. Inverters and AC Drives: Control, Modeling, and Simulation Using Simulink offers readers Simulink models for single, multi-triangle carrier, selective harmonic elimination, and space vector PWM techniques for three-phase two-level, multi-level (including modular multi-level), Z-source, Quasi Z-source, switched inductor, switched capacitor and diode assisted extended boost inverters, six-step inverter-fed permanent magnet synchronous motor (PMSM), brushless DC motor (BLDCM) and induction motor (IM) drives, vector-controlled PMSM, IM drives, direct torque-controlled inverter-fed IM drives, and fuzzy logic controlled converter-fed AC drives with several examples and case studies. Appendices in the book include source codes for all relevant models, model projects, and answers to selected model projects from all chapters. 

This textbook will be a valuable resource for upper-level undergraduate and graduate students in electrical and electronics engineering, power electronics, and AC drives. It is also a hands-on reference for practicing engineers and researchers in these areas.

ThingSpeak

Julio
上次活动时间: 2026-4-20，19:28

UTC time issues

Good morning everyone. I’m having a problem with ThingSpeak. I’m sending data from an ESP LoRa with the RTC set to the Brasília time zone (GMT-3).

Previously, when I exported the data to CSV, it used the ThingSpeak time, which appeared 3 hours ahead. Now that I’m sending the timestamp from the ESP, the graphs are showing the data 3 hours behind. Is there a way to align the graph times while keeping the Brazilian time zone?

Pooja
上次活动时间: 2026-4-15，14:01

MATLAB EXPO India | 7 May | Bengaluru

Get inspired by the latest trends and real-world customer success stories transforming industries. Learn from trusted experts across 4 tracks.

AI & Autonomous Systems
Electrification
Systems & Software Engineering
Radar, Wireless & HDL

Image Analyst
上次活动时间: 2026-4-14，16:56

MATLAB on Artemis II?

Do we know if MATLAB is being used on the Artemis II (moon mission) spacecraft itself? Like is the crew running MATLAB programs? I imagine it was probably at least used in development of some of the components of the spacecraft, rockets, or launch building. Or is it used for any of the image analysis of the images collected by the spacecraft?

David Marshall
上次活动时间: 2026-4-9，20:54

Preview a new MATLAB Answers feature before it ships — we want your take!

Hi all,

I'm a UX researcher here at MathWorks working on the MathWorks Central Community. We're testing a new feature to make it easier to ask a question, and we'd love to hear from community members like you.

Sessions will be next week. They are remote, up to 2 hours (often shorter), and participants receive a $100 stipend. If you're interested, you can click here to schedule.

Thanks in advance! Your feedback directly shapes what gets built.

--David, MathWorks UX Research

Dan Dolan
上次活动时间: 2026-4-9，19:58

To live and let doc

MATLAB interprets the first block of uninterupted comments in a function file as documentation. Consider a simple example.

% myfunc This is my function 
%
% See also sin
function z = myfunc(x, y)
z = x + y;
end

Those comments are printed in the command window with "help myfunc" and displayed in a separate window with "doc myfunc". A lot of useful things happen behind the scenes as well.

Hyperlinks are automatically added for valid file names after "See also".
When dealing with classes, the doc command automatically appends the comment block with a lists of properties and methods.

All this is very handy and as been around for quite some time. However, the doc browser isn't great (forward/back feature was removed several versons ago), the text formatting isn't great, and there is no way to display math.

Although pretty text/math can be displayed in a live document, the traditional *.mlx file format does not always play nice with Git and I have avoided them. However, live documents can now (since 2025a?) be saved in a pure text format, so I began to wonder if all functions should be written in this style. Turns out that all you have to do is append these lines:

%[appendix]{"version":"1.0"}
%---

to the end of any function file to make it a live function. Doing so changes how MATLAB manages that first comment block. The help command seems to be unaffacted, although [text] may appear at the start of each comment line (depending on if the file was create as a live function or subsequently converted). The doc command behaves very different: instead of bringing up the traditional window for custom documentation, the comment block looks like it gets published to HTML and looks more similar to standard MATLAB help. This is a win in some ways, but the "See also" capabilitity is lost.

Curiously, the same text can be appended to the end of a class definition file with some affect. It does not change how the file shows up in the editor, but as in live functions, comments are published when using the doc command. So we are partway to something like a "live class", but not quite.

Should one stick with traditional *.m files or make everything live? Neither does a great job for functions/classes in a namespace--references must explicitly know absolute location in traditional functions, and there is no "See also" concept in a live function. Do we need a command, like cdoc (custom documentation), that pulls out the comment block, publishing formatted text to HTML while simultaneously resolving "See also" references as hyperlinks? If so, it would be great if there were other special commands like "See examples" that would automatically copy and then open an example script for the end user.

Meta Cody

Javier
上次活动时间: 2026-4-9，11:45

Problem 859. Get the elements of diagonal and antidiagonal for any m-by-n matrix

I've been trying this problem a lot of time and i don't understand why my solution doesnt't work.

In 4 tests i get the error Assertion failed but when i run the code myself i get the diag and antidiag correctly.

function [diag_elements, antidg_elements] = your_fcn_name(x)
    [m, n] = size(x);
    
    % Inicializar los vectores de la diagonal y la anti-diagonal
    diag_elements = zeros(1, min(m, n));
    antidg_elements = zeros(1, min(m, n));
    
    % Extraer los elementos de la diagonal
    for i = 1:min(m, n)
        diag_elements(i) = x(i, i);
    end
    
    % Extraer los elementos de la anti-diagonal
    for i = 1:min(m, n)
        antidg_elements(i) = x(m-i+1, i);
    end
end

Naomi Fernandes
上次活动时间: 2026-4-8，20:48

Top 10 Countdown: #1— Most‑Attended Session at MATLAB EXPO Online 2025

Digital Twin Development of PEARL Autonomous Surface System Thermal Management

The top session of the countdown showcases how the PEARL engineering team used a digital twin to solve real‑world thermal challenges in a solar‑powered autonomous marine platform operating in extreme environments. After thermal shutdown events in the field, the team built a model that predicts temperatures at multiple locations with ~1% accuracy, while balancing accuracy with model complexity.

Beyond the technology, this keynote delivers practical lessons for predictive modeling and digital twins that apply well beyond marine systems.

We hope you’ve enjoyed the Top 10 countdown series—and a big thank‑you to Olivier de Weck at Massachusetts Institute of Technology, for delivering such a compelling and insightful keynote.

🎥 If you missed it live, be sure to watch the recording to see why it earned the #1 spot at MATLAB EXPO 2026.

Pooja
上次活动时间: 2026-4-8，15:00

MATLAB EXPO 2026 | Bengaluru

MATLAB EXPO India is Back!

This in-person events brings together engineers, scientists, and researchers to explore the latest trends in engineering and science, and discover new MATLAB and Simulink capabilities to apply to your work.

May 7, 2026 l Bengaluru

ptoshkov
上次活动时间: 2026-4-6，13:40

Integrated Terminal For The MATLAB IDE

Dear all,

Recently I started working on a VS Code-style integrated terminal for the MATLAB IDE.

The terminal is installed as an app and runs inside a docked figure. You can launch the terminal by clicking on the app icon, running the command integratedTerminal or via keyboard shortcut.

It's possible to change the shell which is used. For example, I can set the shell path to C://Git//bin//bash.exe and use Git Bash on Windows. You can also change the theme. You can run multiple terminals.

I hope you like it and any feedback will be much appreciated. As soon as it's stable enough I can release it as a toolbox.

Matt J
上次活动时间: 2026-4-4，14:46

Shouldn't max([])=-inf ?

Matlab seems to follow a rule that iterative reduction operators give appropriate non-empty values to empty inputs. Examples include,

sum([])
ans = 0
prod([])
ans = 1
all([])
ans = logical
   1
any([])
ans = logical
   0

Is it an oversight not to do something similar for min and max?

max([])
ans =

     []

For non-empty A and B,

max([A,B])= max(max(A), max(B))

The extension to B=[] should therefore satisfy,

max(A)=max(max(A),max([]))

for any A, which will only be true if we define max([])=-inf.